Longines Ultra-Chron High-Frequency watch (1968) Reference 7951
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Serviced and revised by Longines Heritage workshop
- Movement Type:
- Dial colour:
- Stainless steel
- Type of watch
- Stainless steel watch in a purist design, powered by a high-frequency movement, caliber 431. Longines guaranteed at its launch in 1967 an accuracy of a minute a month or two seconds per day. This model (ref. 7951) is part of the Ultra-Chron collection and was launched in 1968.
- Serial No
Overall excellent, attractive condition, original dial
Serviced and revised by Longines Heritage workshop.
- Date of production
- Date of sale
- In 1969 to the company Urania Handels A/B, Sweden.
- Certificate of authenticity by Longines
What makes this timepiece exceptional
Longines registered the Ultra-Chron mark in Switzerland on 28 October 1966. The entire line of models in this collection was distinguished from other models by its high-frequency movement. It was one of the most accurate watches of its time in serial production: Its name Ultra-Chron stands for Ultra-Chronometer, which means more accurate than a traditional Chronometer. The Longines Ultra-Chron was the last mechanical watch to equal the accuracy of the electronic tuning-fork watches of its time. But of course without any battery.
Restoration by Longines is made up of more than ten meticulous steps calling on all the qualities of our experts. From diagnosis to testing, discover more about Longines workshop services.